Sahih al-Bukhari, Hadith 4111 ⓘ
Narrated `Ali: On the day of Al-Khandaq (i.e. Trench), the Prophet said '(Let) Allah fill their (i.e. the infidels') houses and graves with fire just as they have prevented us from offering the Middle Prayer (i.e. `Asr prayer) till the sun had set."
حَدَّثَنَا إِسْحَاقُ، حَدَّثَنَا رَوْحٌ، حَدَّثَنَا هِشَامٌ، عَنْ مُحَمَّدٍ، عَنْ عَبِيدَةَ، عَنْ عَلِيٍّ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم أَنَّهُ قَالَ يَوْمَ الْخَنْدَقِ " مَلأَ اللَّهُ عَلَيْهِمْ بُيُوتَهُمْ وَقُبُورَهُمْ نَارًا كَمَا شَغَلُونَا عَنْ صَلاَةِ الْوُسْطَى حَتَّى غَابَتِ الشَّمْسُ " .
also referenced under: Book 64, Hadith 155 (In-Book) & Volume 5, Book 59, Hadith 437 (USC-MSA)